Czech

Not applicable.

Subject graduate should have been able:
- analyze the electromagnetic field in synchronous and synchronous machine using resistance network methods,
- analyze the electromagnetic field in synchronous and synchronous machine using FEM,
- optimize the electrical machine from an electromagnetic point of view,
- explain the issue of heat dissipation and cooling in an electrical machine,
- construct a thermal network of an electric machine,
- analyze the temperature distribution in an electrical machine,
- optimize the electric machine from a thermal point of view.

Student should have been able to:
- explain electromagnetic basic principles, solve DC, AC electric circuits with lumped parameters and magnetic circuits,
- differentiate functions of one and more variables,
- integrate functions of one and more variables,
- solve transients in linear and nonlinear circuits using Matlab Similink,
- explain principle of operation and properties of electromagnets, transformers, induction, synchronous and DC machines.

Not applicable.

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Requirements for completion of a course are specified by a regulation issued by the lecturer responsible for the course and updated for every.

Lectures:
1. Introduction, motivation, basic elements of a 2D resistive network.
2. Construction of resistance network for an electric machine, calculation of magnetic induction in the air gap, calculation of induced voltage.
3. Calculation of electrical machine parameters from the resistance network.
4. Use of numerical methods for analysis of electrical machines.
5. Modeling and calculation of an induction machine in ANSYS Maxwell.
6. Modeling and calculation of a synchronous machine in ANSYS Maxwell.
7. Introduction to thermal calculations of electrical machines.
8. Fundamental forms of heat transfer.
9. Introduction to the issues of thermal flow in electrical machines.
10. Modeling of hydraulic circuits of electric machines.
11. Calculations of thermal resistance of individual parts of electric machines.
12. Thermal network method.
13. Transient thermal calculation of the electrical machine.


Numerical and computer exercises
1. Calculation of resistance networks.
2. Construction of resistance network for an electric machine, calculation of magnetic induction in the air gap and calculation of induced voltage in MATLAB.
3. Calculation of electrical machine parameters from the resistance network in MATLAB.
4. Introduction to ANSYS Maxwell.
5. Modeling and calculation of an induction machine in ANSYS Maxwell.
6. Modeling and calculation of a synchronous machine in ANSYS Maxwell.
7. Basic heat transfer calculations.
8. Calculation of heat transfer coefficients.
9. Calculation of hydraulic circuits.
10. Calculation of thermal resistances.
11. Calculation of temperature in a transformer.
12. Calculation of warming of rotating electric machines.
13. Thermal calculation of electrical machines in ANSYS.

Not applicable.

Deepening knowledge of design of electric machines with a focus on electromagnetic and thermal calculations. The student should be able to optimize the electrical machine not only from the point of view of the electromagnetic field but also from the temperature field.

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Not applicable.

Not applicable.

ÇENGEL, Yunus A. a Afshin J. GHAJAR, 2015. Heat and mass transfer. Fifth edition. New York, NY: McGraw Hill Education. ISBN 00-733-9818-7. (EN)
PYRHONEN, Juha., Tapani JOKINEN a Valeria. HRABOVCOVÁ, 2014. Design of rotating electrical machines. Second edition. Chichester, West Sussex, United Kingdom: Wiley. ISBN 9781118581575. (CS)

Not applicable.